[Bug 4500] New: msvcrt: regression in very simple test app.

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4500

           Summary: msvcrt: regression in very simple test app.
           Product: Wine
           Version: CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Keywords: regression, download
          Severity: normal
          Priority: P2
         Component: wine-misc
        AssignedTo: wine-bugs(a)winehq.org
        ReportedBy: xerox_xerox2000(a)yahoo.co.uk


Hi, there have been several regressions in msvcrt in the SeriousSam demo. I'll
leave bug 4482 for a regression that took place between wine's june and july
version 2005. I think there's also a bug/regression in _vsnprintf

here's modified sample from msdn; modifications are based on what SeriousSam
passes to _vsnprintf:

#include <stdarg.h>
#include <wtypes.h>

void VarArg(LPCSTR formatstring, ...)
{
  int nSize = 0;
  char buff[255];
  va_list args;
  va_start(args, formatstring);

  nSize = _vsnprintf( buff, sizeof(buff), formatstring, args);
  printf("nsize=%d\n", nSize);
}

void main() {
  VarArg("Players\Player%d.plr", "Players\Player0.plr");
  VarArg("Cannot open file `%s' (%s) ()", "");

}

The exe can be found at http://bugs.winehq.org/attachment.cgi?id=1829&action=view


it gives:

WINEDLLOVERRIDES="msvcrt=n" wine a.exe
nsize=24
nsize=25

same result with wine 0.9.5

with wine 0.9.7:

wine a.exe
nsize=24
nsize=33

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